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Buoyancy of Underground Tanks 6/22/2023 <br /> Fiberglass Straps with Deadman Anchors <br /> PaOF <br /> "Bold Typed Items are Input Values" ',/� <br /> R. <br /> �' `N0.8238� <br /> Underground Tank Description: 25K GSII 9 E%PIR <br /> Tank Model: GSII a <br /> Outer Tank Diameter(Inches): 121 <br /> Tank Length(Inches): 513 <br /> Tank Capacity(Gallons): 25535 Fuel tanks must be <br /> Tank Buoyancy: 213,019 installed with the specified <br /> Primary Shell Thickness(Inches): 0.25 dead men and straps <br /> Secondary Shell Thickness(Inches): 0 <br /> Accessories Weight Extra 1913 <br /> Calculated Tank Weight: 17,370 17,370 <br /> Sumps/Enclosures <br /> Quantity of Item 1 enclosures 1 <br /> Item 1:"Diameter"(Inches): 42 <br /> Item 1: "Height"(inches): 60 OK <br /> Quantity of Item 2 enclosures 1 <br /> Item 2:"Diameter"(Inches): 48 <br /> Item 2: "Height"(inches): 60 OK <br /> Buoyancy contributed by enclosures: 6922 <br /> Net Tank Buoyancy: 202,572 <br /> Concrete Slab at Grade <br /> Concrete weight/cubic foot: 150 <br /> Surface Concrete Slab Thickness(Inches): 8 <br /> Weight of concrete Slab: 32,990 <br /> (Slab size:24">tank diameter,48"5 tank length) <br /> Burial and Water Table Depth <br /> Net saturated soil weight to overcome buoyancy 57.6 <br /> Saturated backfill weight/#cubic foot: 120 <br /> Dry backfill weight/#cubic foot: 100 <br /> Tank Burial Depth,Top of tank to grade(Inches): 60 <br /> Elevation of water table,"0 inches"is flooded hole: 0 <br /> Weight of Backfill directly over tank: 134,457 <br /> Overburden lost due to sump size and number: 6834 <br /> Net Overburden= 127,623 <br /> Deadman Configuration <br /> Deadman Anchor width(Inches): 14 OK <br /> Deadman Anchor height(Inches): 14 Aside Parameters <br /> Deadman anchor length(Inches): 408 OK <br /> Deadman Contribution toward Overcoming Buoyancy: 130,452 <br /> Total Weight Concrete,Overburden&Deadman contributions: 291,065 <br /> If=( )then insufficient Buoyancy Results: 88,493 <br /> SAFETY FACTOR: 1.2 1.40 JACCEPTABLE <br /> Required <br /> Special Note: <br /> Deadman,holddowns,overburden backfill and concrete cover all act together as a complete system. <br /> If anyone of these elements is not fully utilized,holddown system may not function adequately. <br /> Disclaimer Statement: <br /> The attached information is supplied to you for information purposes only. <br /> Therefore,Modern Welding Company,their officers,directors nor subsidiaries there of accept any/no <br /> responsibility for the use of this information covered within.This information is advisory only and the use <br /> of the material and methods is solely at the risk of the user. <br /> 1 <br />